Established users of macOS Sierra who wish to update directly to macOS High Sierra can do so just like a regular Mac would. These fully native methods require no USB creation or preparation and allow you to keep all of your files and settings.

Before you begin, we strongly recommend performing a full backup of your existing system using Carbon Copy Cloner. By doing this, you can always go back to your working macOS Sierra installation.

Guide: Update Directly to macOS High Sierra (APFS)
Apple is now using APFS (Apple File System) instead of HFS+ for the default file system in macOS High Sierra for solid state drives. If you have a SSD, this guide will auto-convert it to APFS by default. Users with traditional 'spinning' hard disk drives will remain on HFS+ by default. Using APFS with Clover requires copying the apfs.efi file from the installer to your Clover EFI. If you would like to update without converting to APFS use the HFS+ guide below.

2. Open Clover configuration folder on the root of your system drive or EFI Partition using EFI Mounter v3. Copy FakeSMC.kext and any other extra necessary kexts to /EFI/CLOVER/kexts/Other/. If you need essential kexts, download them here.

Alternative Guide: Update Directly to macOS High Sierra (HFS+)
Some users with solid state storage may choose to update to macOS High Sierra without converting to APFS filesystem, thus maintaining HFS+ filesystem. This guide will not auto-convert your HFS+ SSD to APFS.

2. Open Clover configuration folder on the root of your system drive or EFI Partition using EFI Mounter v3. Copy FakeSMC.kext and any other extra necessary kexts to /EFI/CLOVER/kexts/Other/. If you need essential kexts, download them here.

3. Download Install macOS High Sierra Application from the Mac App Store. When complete, the app will open. Close the window.

MultiBeast 9.2.1 is incompatible with APFS drives, but works with HFS+. We will be releasing updated versions of UniBeast and MultiBeast and a full UniBeast installation guide in the near future.

In the meantime, if you are already installed on Sierra, we suggest using the above update guides. For fresh installations, please see the following post for instructions to create a USB installer for High Sierra.